The list field of a tiddler is an optional feature that can be used to help structure your content. Its value is a title list, and it can be used in several ways:
list field of a tiddler that is being used as a tag determines the ordering of the tiddlers that carry that tag - see Tagging for detailslist filter selects the entries from a listlisted filter selects the tiddlers that list the selected tiddler(s)list field of the tiddlers that are displayed in the main story column